Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Fair Value by Contractual Maturity (Details)

v3.20.4
Fair Value Measurements - Fair Value by Contractual Maturity (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
One Year or Less $ 27,041  
Over One Year Through Five Years 40,505  
Over Five Years 0  
Total 67,546 $ 0
U.S. Treasury securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
One Year or Less 6,075  
Over One Year Through Five Years 15,265  
Over Five Years 0  
Total 21,340  
Commercial paper    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
One Year or Less 14,543  
Over One Year Through Five Years 0  
Over Five Years 0  
Total 14,543  
Asset-backed securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
One Year or Less 560  
Over One Year Through Five Years 13,978  
Over Five Years 0  
Total 14,538  
Corporate bonds    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
One Year or Less 5,863  
Over One Year Through Five Years 11,262  
Over Five Years 0  
Total $ 17,125